[ 1.848197] ------------[ cut here ]------------ [ 1.848289] refcount_t: underflow; use-after-free. [ 1.848338] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 1.848410] Modules linked in: veth [ 1.848445] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 1.848527] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1.848575] Workqueue: netns cleanup_net [ 1.848615] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 1.848659] Code: 95 e8 f8 c3 ba ff 90 0f 0b 90 90 c3 80 3d 39 c1 eb 00 00 75 89 c6 05 30 c1 eb 00 01 90 48 c7 c7 30 a0 11 95 e8 d5 c3 ba ff 90 <0f> 0b 90 90 c3 80 3d 14 c1 eb 00 00 0f 85 62 ff ff ff c6 05 07 c1 [ 1.848809] RSP: 0018:ffffa12f40067d50 EFLAGS: 00010286 [ 1.848852] RAX: 0000000000000000 RBX: ffffa12f40067d60 RCX: 00000000ffffdfff [ 1.848905] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 1.848973] RBP: ffffa12f40067880 R08: ffffffff95556a28 R09: 00000000ffffdfff [ 1.849031] R10: ffffffff95476a40 R11: ffffffff95526a40 R12: dead000000000122 [ 1.849095] R13: 00000000fffb72d6 R14: 0000000000000001 R15: ffff951c05639000 [ 1.849165] FS: 0000000000000000(0000) GS:ffff951ca8fe2000(0000) knlGS:0000000000000000 [ 1.849229] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.849283] CR2: 00005632315483b8 CR3: 0000000005594006 CR4: 0000000000772ef0 [ 1.849341] PKRU: 55555554 [ 1.849364] Call Trace: [ 1.849390] [ 1.849414] netdev_run_todo+0x21a/0x550 [ 1.849451] ops_undo_list+0x1e3/0x1f0 [ 1.849484] cleanup_net+0x1b7/0x2b0 [ 1.849526] process_one_work+0x162/0x380 [ 1.849567] worker_thread+0x299/0x3c0 [ 1.849599] ? rescuer_thread+0x4c0/0x4c0 [ 1.849634] kthread+0x101/0x1f0 [ 1.849689] ? kthreads_online_cpu+0x110/0x110 [ 1.849735] ? kthreads_online_cpu+0x110/0x110 [ 1.849785] ret_from_fork+0x11c/0x140 [ 1.849820] ? kthreads_online_cpu+0x110/0x110 [ 1.849862] ret_from_fork_asm+0x11/0x20 [ 1.849900] [ 1.849922] ---[ end trace 0000000000000000 ]--- [ 2.097976] key-management_ (226) used greatest stack depth: 12488 bytes left